answer - sl3 is diffrent security as compared to sl2 , all nokia phones till sl2 security need sx4 service for writing rpl . but for sl3 security case is diffrent , sl3 cant be used with sx4 service , for sl3 security sx5 is needed , and according to my knwoledge no box in the market has sx5 card .

so lets hope for the best and plz do not submit sl3 ask for calculating rpl , coz it just wast ur money